@derekhalden.bsky.social on Bluesky

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Derek Halden

derekhalden.bsky.social

did:plc:hwhwl2yysimqi2wikip5lqjh

Civil engineer, transport system design, analyst, think tank writer and editor https://derekhalden.net/ https://dhc1.co.uk/ https://www.loopconnections.org.uk/ https://stsg.org/